Horses' hooves will stomp you dead just as quick if you ignore the sound. The point is: get out of it for a while, since stress is the most probable culprit. If that doesn't do the trick, then look deeper. Don't minimize real symptoms if they persist; they could indicate something really serious. And don't take idiotic advice[1] from random people on the web -- it's far better to spend an unnecessary half-hour with your head stuck in an MRI scanner and feel a bit foolish later than to wait until a real problem becomes irreversible.

[1] "Don't worry, it'll be okay" coming from someone who's never had personal contact with you counts as idiotic advice. If you don't know the before-and-after, if you haven't had a chance to notice other behavioural changes, then even considering an attempt at diagnosis is irresponsible.